Prospects for creating a low-consumption oil-free piston machine with the increased service life

Technologies for autonomous functioning of the compressor equipment require their long-term continuous operation (up to 80,000 hours or more). Research was carried out on piston compressors, which results demonstrated that they were not providing the required service life due to failures in the main functional elements. The most promising piston compressors were the low-speed machines. However, they were significantly inferior in efficiency before improvement to their analogues, although even then their service life was longer than that of the other piston machines. Measures were taken to modernize the self-acting valves and cylinder-piston seals making it possible to achieve efficiency close to the existing compressor equipment. Delivery coefficient and indicator isothermal efficiency coefficient (up to 0.5...0.7) were increased at the discharge temperature of not higher than 430 K. Besides, the predictive service life of at least 100,000 hours was ensured.
EDN: TEEIDW, https://elibrary/teeidw

References

[1] Plastinin P.I. Porshnevye kompressory. T. 1. Teoriya i raschet [Piston compressors. Vol. 1. Theory and calculation]. Moscow, KolosS Publ., 2006. 456 p. (In Russ.).

[2] Shcherba V.E. Teoriya, raschet i konstruirovanie porshnevykh kompressorov obemnogo deystviya [Theory, calculation and design of reciprocating compressors of volumetric action]. Moscow, Yurayt Publ., 2023. 323 p. (In Russ.).

[3] Shchuka I.O. Povyshenie ekspluatatsionnykh svoystv membrannogo bloka membranno-plunzhernogo kompressora. Diss. kand. tekh. nauk [Increase of operational properties of a diaphragm block of a diaphragm-plunger compressor. Kand. tech. sci. diss.]. Omsk, OmGTU Publ., 2012. 162 p. (In Russ.).

[4] Yusha V.L., Chernov G.I. Analiz termodinamicheskoy effektivnosti sistem rekuperatsii teplovykh poter silovykh agregatov mobilnykh kompressornykh ustanovok [Analysis of thermodynamic efficiency of heat loss recovery systems of power units of mobile compressor units]. Omsk, Izd-vo OmGTU Publ., 2014. 114 p. (In Russ.).

[5] Yusha V.L., Busarov S.S., Nedovenchanyy A.V. et al. Experimental study of working processes of low-speed long-stroke lubrication free piston compressor stages at high discharge pressure to suction pressures. Omskiy nauchnyy vestnik. Ser. Aviatsionno-raketnoe i energeticheskoe mashinostroenie [Omsk Scientific Bulletin. Ser. Aviation-Rocket and Power Engineering], 2018, vol. 2, no. 2, pp. 13–18, doi: https://doi.org/10.25206/2588-0373-2018-2-2-13-18 (in Russ.).

[6] Yusha V.L., Busarov S.S. Experimental evaluation of the indicator feed rate of a long-stroke piston compressor stage. Kompressornaya tekhnika i pnevmatika [Compressors & Pneumatics], 2020, no. 3, pp. 39–41. (In Russ.).

[7] Gromov A.Yu. Razrabotka porshnevykh stupeney s lineynym privodom dlya maloraskhodnykh kompressornykh agregatov i issledovanie ikh rabochikh protsessov. Diss. kand. tekh. nauk [Development of piston stages with a linear drive for low-flow compressor units and research of their working processes. Kand. tech. sci. diss.]. Kazan, KNITU Publ., 2017. 213 p. (In Russ.).

[8] Nedovenchanyy A.V. Povyshenie energeticheskoy i dinamicheskoy effektivnosti porshnevogo maloraskhodnogo odnostupenchatogo kompressornogo agregata s lineynym gidroprivodom. Diss. kand. tekh. nauk [Increase of energy and dynamic efficiency of the piston low-flow single-stage compressor unit with a linear hydraulic drive. Kand. tech. sci. diss.]. Omsk, OmGTU Publ., 2020. 232 p. (In Russ.).

[9] Polyakova T.V. State and prospects of hydrogen energy development. Vestnik MGIMO Universiteta [MGIMO Review of International Relations], 2012, no. 1, pp. 156–164. (In Russ.).

[10] GOST 31843–2013. Neftyanaya i gazovaya promyshlennost. Kompressory porshnevye. Obshchie tekhnicheskie trebovaniya [State standard | GOST 31843–2013. Petroleum and natural gas industries. Reciprocating compressors. General technical requirements]. Moscow, Standartinform Publ., 2015. 173 p. (In Russ.).

[11] Kalekin V.S., Kalekin D.V., Nefedchenko A.N. Mathematical model of piston pneumatic engine with self-acting valves. Omskiy nauchnyy vestnik [Omsk Scientific Bulletin], 2013, no. 3, pp. 72–76. (In Russ.).

[12] Kotlov A.A. Matematicheskaya model vozdushnogo porshnevogo kompressora srednego davleniya dlya resheniya zadach energoaudita. Diss. kand. tekh. nauk [Mathematical model of a medium pressure air piston compressor for solving energy audit problems. Kand. tech. sci. diss.]. Sankt-Petersburg, SPbPU Publ., 2011. 138 p. (In Russ.).

[13] Busarov S.S., Goshlya R.Yu., Gromov A.Yu. et al. Mathematical modelling of heat exchange processes in the working chamber of a low-speed stage of a reciprocating compressor. Kompressornaya tekhnika i pnevmatika [Compressors & Pneumatics], 2016, no. 6, pp. 6–10. (In Russ.).

[14] Kobylskiy R.E. The use of a combined seal to reduce the load acting on the cylinder piston seal. Vestnik BGTU im. Shukhova [Bulletin of Belgorod State Technological University named after. V. G. Shukhov], 2022, no. 7, pp. 117–125, doi: https://doi.org/10.34031/2071-7318-2022-7-7-117-125 (in Russ.).

[15] Busarov I.S. Samodeystvuyushchiy klapan [Self acting valve]. Patent RU 212346. Appl. 17.11.2021, publ. 18.07.2022. (In Russ.).

[16] Yusha V.L., Busarov S.S., Nedovenchanyi A.V. Experimental evaluation of the efficiency of long-stroke, low-speed reciprocating compressor stages in compression of different gases. Chem. Petrol. Eng., 2018, vol. 54, no. 4, pp. 593–597, doi: https://doi.org/10.1007/s10556-018-0520-1